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TMS320F28032: TMS320F28032

Robert Kukis
Prodigy 30 points
Part Number: TMS320F28032


Hello, I asked this question yesterday, however, I may have failed to complete the Form because, I did not see my question posted. Therefore, I will ask again.

When using the TI, TMS320F28032 Micro Controller, could I use the GPIO30 [ CANRXA [ I ] port [ pin 33 ] to bias a Transistor ON [ MMBT3904WT1 ] ?

Would it be better if I used the GPIO31 [ CANTXA [ O ] port [ pin 32 ] instead ?

The reason I am asking is because the Data Sheet lists CANRXA as an Input [ I ] and CANTXA as an Output [ O ]. Is the " I " and " O " labels only regarding, interfacing these ports to communication devices ?

Thank you and good day.

Robert J. Kukis

robert.kukis@rockwellautomation.com

  • 0
    TI__Mastermind 30185 points

    Hello Robert,

    I'm not familiar with using a GPIO to bias a transistor, are you trying to use CAN specifically to bias the transistor, or just the GPIO itself?

    Robert Kukis said:
    Is the " I " and " O " labels only regarding, interfacing these ports to communication devices ?

    Yes, that is correct; the RX is an input and the TX is an output, but the GPIO can be configured to be either outside of being used for the CAN peripheral.

    Best regards,

    Omer Amir